Date: 07 Apr 2012

Abundance and Species Distribution of Bird Communities in Ritchie’s Archipelago, Andaman and Nicobar Islands

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Abstract

The study was conducted in Ritchie’s Archipelago during November 2008–April 2011. The aim of this study was to describe the species abundance, diversity and distribution pattern of bird communities. The species abundance and diversity was calculated using the census data and field observations. The density of birds was estimated using line transect method, and the following islands were covered to assess the bird population, viz., Havelock Island, John Lawrence Island, Henry Lawrence Island, Inglis Island, Outram Island, Middle Button Island, South Button Island, North Button Island and Neil Island. During the study period, a total of 136 species of birds belong to 15 orders and 40 families were recorded. The White-headed Starling (863.25 birds/km2) was highest in density followed by Andaman Wood Pigeon (673.13 birds/km2), White-bellied Sea Eagle (660.56 birds/km2) and Common Hill Myna (613.23 birds/km2). The species diversity, abundance and distribution patterns were discussed in this paper.